Door catch



Oct. 2', 1928. 1,686,417

w. NORMAN DOOR CATCH Filed April 29, 1927 Y Fatented ct. 2, 1928,

` UNITED Sie;

*Y WLLIAMKNORMAN, or NORMAN, nnnnasme noon oAToHJff i i Appncaaon ineaApril a9, 1927. sentano. 187,605. j

This invention relates to improvements for latchi'ng and holding doors.

The .primary object of this invention is the provision of a simple typeof door catch wlnchis adapted for use in connection with casing and doorportions of buildings, where-` by to enablethe door to latch inconvenient manner whenever it is closed. e f A further and importantobject ofthis inl0 vention is the provision of a latch structure fordoors embodying means by which the latch structure may be dogged toprevent unauthorized persons from outside the buildingstruc-ture fromoperating the same. Y further object of this invention is the provisionof an improved latch structure which may be used in connection withswinging or sliding types Aof doors. and which is reversible for useat.l either side of the door, depending upon the side to which it is tobe attached. j l

Other objects and advantages lof this invention will be apparent duringthe course of the following detailed description; Y

In the accompanying drawing, forming a part of this specification, andwherein similar reference v characters designate corre sponding partsthroughout the several views, Figure 1 is a view taken sectionallythrough a portion of a door structure, and showing the improved latch asVit is connected to a jamb or casing portion of the door structure, thisvi ew being takensubstantially on the line 1-1 of Figure 2.

Figure 2 isa fragmentary view of a front portionof a Y typeof keeperwhich may be used in connection therewith to receive the hoolrportion ofthe latch. Figures 3 and 4 are side elevations of the `improved latchstructure, showing a cover portion thereof removed to expose workingdetailsv of latched positions.

Figures 5 taken substantially `on their respective lines in Figure 3 ofthe drawing.

Figure 7 is a view, partlyin cross section, showing themanner in 'whichthe improved door catch may be used in connection with sliding doorstructures. i

In the drawing, wherein for the purpose of illustration is shown only apreferred embodii ment of this invention the letter A mayy generallydesignate the improved door catch,

door structure, showing a novel 'Y the' hook when in latched andun and 6are cross sectional views l which embodies a casingv structure B;movable bolt and keeper D; i The improved door catch A as used in.connection with two types of doors preferably ,has they casing structureB secured to the j amb portion F ad# jacent the swinging door G.v Inconnection with slidingdoors H such as illustratedl in Figure 7 thecasing B is secured to .the door, and a novel type of keeper structure Kis used. inthe casing` L adjacent the door H.`

Referring to the details of the casing structure B, the same preferablyis of two-part construction, including parts 15 and 16, of

complementary` formation, which are substantially rectangular in outlineand which provide the upper and lower rib portions 17 and 18 along theupper Vand lower marginal edges of eachof the saine, to provide a pocket'19 adaptedr to pivot-ally'receive tliel'bolt or hoolr C therein whenthe casing portions 15 and 16 are secured together.

Referring now tothe structure of the hook C, the same may be of anymaterial, preferably iron, and includes a body portion 25' whichvat thelower corner thereof has` an opening 26 preferably a slot, whichreceives `therethrough a pin 27 whichV iscarried transversely across thecompartment 19 by'means f of bolt or hook C is pivoted intermediate itsends. rlhe body portion 25 surrounding the aperture or opening 26 issomewhat reduced, and the side surfaces of this reduced portion rest inabutting relation upon substantially disc-shaped portions 30 formed onthe insides.

the VVcasing portions 15` and 16, sothat the of the casing portions 15and 16, extending inwardly vof thecompartment'19 thereof, as isillustrated in the drawing,so that the hook C at the place of itspivotal connection is mountin sliding contact with' the relatively smallprojecting` portions 30, `and so that the side surfaces of the bod-i5portion 25 otherwise kdo vnot contact the inside surfaces of the casingportions 15 and "16, thus facilitating pivotal movement of the yhook C.`Atthe forward endfthe hook CA provides a reduced head 35,

vwhich at its juncture with the body portion- 25, on each side of thehook Cprovides shoulders 36, as illustrated in Figure 5 of the drawing.In position ywithin the casing B" the bolt or hook C at its reduced headportion extends through the frontl opening a() of the casing, so thatthe shoulders 36 mayhave an abutting action against rib portions 42whichy areprovided in projecting relation toward the shoulders 36 at thefront edges of the casing portions 15 and 16, and as is illustrated inFigure 5 of the drawings. The shoulders 36 abut against the ribs 42 whenthere is any tendency to pull the VhookC from the casing, incident toattempting to open the door, Aand thus reinforce the position of thehook C, re-

' lieving some of the strain which would otherwise occur on the pivotpin 27. The head 35 includes a lower recess 46, adapted to receivesuitable `securing mechanism with the keepers D or K, as will besubsequently described, and the head portion"35 has the upper and loweredges 47 and 48 thereof tapered in converging relation toward the frontedge 49 thereof, to

Y facilitate operation of the hook C, as is obthrough an opening 56which occurs at the rear end ofthe casing B, so that a persony mayengage the rear end of the handle 51 to pivotally move the hook or boltC. The handle 5l has a depending lug 58 which provid-es a ,surface 59rinright angled relationfwith respect to the run of the'handle 51, whichis n adapted to receive in engaging relation thereagainst the upper endof a substantially L- vshaped pawl or detent 60 which is pivotallyconnected, as at 61, tothe casing port-ions 15 and 16 in the rearopening 56 thereof. The detent 60 may be swung so that a laterally eX-tending leg portion 62 thereof engages against a shoulder 63 of thecasing, and in which'instance thev leg portio-n 64 thereof is independing .relation exteriorly of the casing wheret-he same may beeasily reached by an operator. In this position the hook C is f free'toswing for unlatching the door. In

the other position ofthe Apawl or detent 60, and which is illustrated in4Figure Bjof rthe drawing, the leg portion 64 is substantiallyvertically'disposed in resting relation at its upper endagainst the hooklug 5 8, and in which position it is retained by gravity to lmaintain'the bolt C in a locked relation with casing B upon a jamb,screws 65 may be eml `ployed for securing the sections 15 and 16together, these. screws having theirA heads respect toits keeperstructure.

i In this position the leg portion 62 extends slightly outwardly fromthe casing where the same may GO be readily engaged by the finger of aperson to facilitate outward swinging of the detent.Vv

In connection with the mounting of the countersunk in the casingsections 15 andr16, and other screws 66 may be used for not onlyconnecting the sect-ions 15 and 16 together,

but which may extend into the jamb portion F, as is illustrated inFigure 6 of the drawing,

in order to mount the casing portion B so that the hook head 35 projectsfrom the'forward edge of thej amb`F, where the saine may read ily enterthe keeper D. Y

Referring to the keeper D, the saine is of novel construction,preferably formed" of sheet material, and including an attaching portion7 O which may be of triangular shape,

adapted for attachment to the front surface of the doorG by countersunkscrews 72, and vwhich attaching portion has a handlev 4 pivotallymounted thereon. This attaching portion 70 is apertured, at 75, adaptedto be po'-l sitioned in alignment withY a slot 77 similarly providedthrough the door struc-ture G, and through slots 7 7 and 75 the head ofthe hook C may project. The keeper structure D alsoY includes a. flangeportion 79 at right angles to the attaching portion 70, and adapted tooverlie the edge 80 of the door G, and which flange 79 is providedwithupper and lower openings 81 and 82 therein. The lowermost opening 82receives a pin 83 therethrough, the shank portion of `which is driveninto the material of the door G, as is illustrated in dotted lines inFigure 2s'o thatthis portion extends trans- Yversely across the opening77 and provides a keeper pin or element which may be received within therecess 46 of thelatch hook C.

In operation with the swinging type of door G, the casingB and hook C ismounted as above mentioned upon the jainb F, and the keeper structure Dmounted` upon thefd'oor Gu YVhen the door Gr swings `closed the keeperpin 28 will engage the tapered surface 48 ofV the hook head 35, and willelevate. the forward end of said hook C until 'hook C will fall bygravity to receive the keeper pin 83 therein. In this position theapertured end of the hook head 35 projects outwardly from the keeperattaching portion 70, and through the aperture 50 a padlock or similararrangement may be placed to positively lock the door structure in aclosed relation with respect to the latch.

.The locking arrangement may alsobe effected by means of the detent 60,as above described;

Referring to the use of the improved latching` device A upon the slidingtype of door, a pocket 90 is provided' on the inside `of the door,within which the casing B of the latch device A fits, so that theloutsideof the casing is flush with the inside surface of the `door I-I,and so that the end edge 91 of the casing B is also preferably flushwith the' front edge 92 of the door I-I. In this relation of parts arecess 94will have to be provided inwardly of the inside surface of thedoor, to permit free pivotal movement of the detent 60 into holding andrelease positions. Y The hook head 35 projects outwardly from theforward l member 97, providing a compartment 98 therein, laterallythrough which a keeper pin 99 is supported, preferably adjacent thelower part and forward lface thereof, over which the hook head 35 mayengage in accordance with the above described structure. Upper and lowerattaching flanges 109 and lOl are provided integral with the box 97,which may be countersunk in the edge of the jamb L, and countersunkscrews 102 are disposed through these flanges into the j amb L. 'Thepocket 98 is of course open at the edge of the jamb so that the hookhead S5 may readily kenter the same, and the keeper pin 99 may ridealong the tapered surface i8 of the hook head 35 to elevate the same andpermit lool;-v

ing of the door to the jambL.

Various changes in the shape., size, and arrangement of parts may bemade to the form of invention herein shown and described,

without departing from the spirit of this in- 1 vention or the scope ofthe claims.

I claim: f l. ln a latch structure of the class described case providinga compartment therein andan opening forwardly therethrough with ribsprojecting laterally and inwardly of the compartment adjacent saidforward opening, and a bolt piv'oted in the compartment of said caseincluding shoulders adapted for cooperation against the ribs of saidcase and a reduced for 'fard head portion provided with a recess thereinwhich projects through saidjforward opening between the ribs.

2. In a latch structure'of the class described i a case providing acompartment therein, a hoolr including a body portion having a forwardlyextending reduced head provided with a recess therein and a rearwardlyextending reduced handle, means pivotallyv mounting the hook within thecase so vthat the forward end head and rear handle portion thereofextend respectively through the forwardy and rear ends of said case,said body portion of the hook being formed to engage the casel when apull is exerted on the head of the hook to draw it outwardly of thecase. S. ln a latch structure of the class describedthe combination of acasing portion including al pair of sections provided with upper andlower inwardly extending flanges thereon, means lconnecting the casingportions sothat the flanges are in abutment toV provide a compartmentbetween said sections said casing sections rovidinff inwardly projectinglugs with a pin supported therebetween, a bolt pivotally mountedintermediate its ends upon said pin so that the same in engagement withsaid inwardly projecting lugs whereby to support the bolt in` i stablerelation within said compartment to prevent lateral sway thereof. l' tln a latch structure of the class de-v scribed a casing including `acompartment,

and a hoek pivoted intermediate its ends in said compartment, said hookincluding a forward renuced head portion having a recess upwarciytherein and converging upper andl lower surfaces, ysaid hook and casingincludcooporating shoulders adapted to come into engagement with eachother when force is applied to t ie hook tending to withdraw thee 'fromthe-casing. 5.: ln a latchstructure a casing having a compartmenttherein, a hook memberl pivoted between it ends in said compartment,)the Vcasingat opposite ends thereof having' openings therethrough tothe compartment, said hoolr member having a hoolr head on one endthereof extending through one opening at an Y end of thecasing, andhaving a handle at its opposite end extendingv through the other endopening of the casing, an L-sha-ped detent pivoted on the casing havinga portionAvv adapted to engage ythe hoolnentirely within the compartmenttorhold the hookfin Va ioclring position, said detent when so positionedhaving a short extension pro`ecting from the casing forrnger engagementvto release the detent yfrom its locking relation with the hook.

wiLLiAi/i iionirau.v

